Richard Georg Strauss (11 June 1864 – 8 September 1949) was a leading German composer of the late Romantic and early modern eras. He is known for his operas, which include Der Rosenkavalier, Elektra, Die Frau ohne Schatten and Salome; his Lieder, especially his Four Last Songs; his tone poems, including Don Juan, Death and Transfiguration, Till Eulenspiegel's Merry Pranks, Also sprach Zarathustra, Ein Heldenleben, Symphonia Domestica, and An Alpine Symphony; and other instrumental works such as Metamorphosen and his Oboe Concerto. Strauss was also a prominent conductor in Western Europe and the Americas, enjoying quasi-celebrity status as his compositions became standards of orchestral and operatic repertoire.

Also sprach Zarathustra, Op. 30 (Thus Spoke Zarathustra or Thus Spake Zarathustra) is a tone poem by Richard Strauss, composed in 1896 and inspired by Friedrich Nietzsche's philosophical novel of the same name.The composer conducted its first performance on 27 November 1896 in Frankfurt. A typical performance lasts half an hour.

The work has been part of the classical repertoire since its first performance in 1896. The initial fanfare – titled "Sunrise" in the composer's program notes – became particularly well-known after its use in Stanley Kubrick's 1968 film 2001: A Space Odyssey.

- Wikipedia